Results 61 to 70 of about 393 (162)
River Research and Applications, Volume 41, Issue 7, Page 1493-1502, September 2025.ABSTRACT The Madeira River is one of the main tributaries of the Amazon Basin, supporting over 1300 known fish species. Fisheries in this region play a critical role for riverine populations, serving as a primary source of income and sustenance. In 2011, the construction of the Jirau and Santo Antônio hydroelectric dams (HEDs) was completed along the ...
Ana Laura Monteiro de Souza +7 more
wiley +1 more source
Dietary protein levels in Piaractus brachypomus submitted to extremely acidic or alkaline pH [PDF]
Ciência Rural, 2014 The objective this study was to evaluate the effects of dietary protein levels in pirapitinga, Piaractus brachypomus, submited to extremely acidic or alkaline pH. Juveniles were fed for 20 days with three diets with different crude protein (CP) levels (25.3, 32.4 and 40.0%) and then separated in five groups (n=10, three replicates each) which were kept
Garcia, Luciano de Oliveira +3 more
openaire +4 more sources
Effect of egg yolk on thawed semen quality of paco (Piaractus brachypomus)
Revista de Investigaciones Veterinarias del Perú, 2023 The objective of the study was to evaluate the effect of the type of egg yolk (quail-YC vs hen-YG) on the quality of frozen paco (Piaractus brachypomus) semen (volume, colour, concentration, motility, vitality and fertility). Eighteen breeders (15 males and 3 females) were used, whose spermiation and ovulation, respectively, were induced with carp ...
Manrique Quispe, Yan +5 more
openaire +1 more source
Aquaculture in Peru: Situation, Challenges and Prospects
Aquaculture, Fish and Fisheries, Volume 5, Issue 3, June 2025.ABSTRACT Aquaculture in Peru is a sector with significant growth and development in recent years. However, it faces multiple challenges to ensure its sustainability. This study aims to characterize the Peruvian aquaculture system by analysing the public, private and educational stakeholders involved, as well as the productive, commercial and ...
Euler Dolores‐Salinas +1 more
wiley +1 more source
Sperm motility and velocities of Characiformes fishes in different times post-activation
Semina: Ciências Agrárias, 2015 The objective of the current study was to observe the performance kinetics (motilities and velocities) of the spermatozoa from Prochilodus brevis (curimatã), Colossoma macropomum (tambaqui) and Piaractus brachypomus (pirapitinga) species in different ...
Mônica Aline Parente Melo-Maciel +6 more
doaj +1 more source
Non‐Native Species in Aquaculture: Burgeoning Production and Environmental Sustainability Risks
Reviews in Aquaculture, Volume 17, Issue 3, June 2025.ABSTRACT Rising global food demands and technological advancements have led to unprecedented growth in the aquaculture industry. This rapid expansion has facilitated the translocation of species beyond their native ranges. While farming non‐native species boosts global food supply, it also poses environmental and socio‐economic risks when escapees ...
Francisco J. Oficialdegui +12 more
wiley +1 more source
Environmental Toxicology, Volume 40, Issue 5, Page 817-834, May 2025.ABSTRACT Roundup is one of the most widely used glyphosate‐based harmful herbicides in the United States as well as globally, which poses a severe risk for terrestrial and aquatic organisms. In order to identify the detrimental effects of Roundup exposure in aquatic organisms, we investigated the environmentally relevant concentrations of Roundup ...
Md Imran Noor, Md Saydur Rahman
wiley +1 more source
Ciencia Amazónica (Iquitos), 2015 En acuicultura, los peces son susceptibles al ataque de virus, bacterias, hongos y ectoparásitos. Estos organismos se tornan en un serio problema cuando los peces se encuentran con bajas defensas naturales, se crían en altas densidades y/o se altera ...
Fernando Alcántara Bocanegra +5 more
doaj +1 more source
Behavior of Rio Sao Francisco Piranhas in Response to Changes in Space and Density
Zoo Biology, Volume 44, Issue 3, Page 271-282, May/June 2025.ABSTRACT Previous observations of Rio Sao Francisco piranhas (Pygocentrus piraya) at Cleveland Metroparks Zoo revealed frequent aggressive interactions, which were associated with the injury and death of some individuals. Fishes are known to increase aggressive behavior when available space is limited.
Ronald G. Oldfield +4 more
wiley +1 more source
Zootechnical performance and physiological responses of juvenile pirapitinga (Piaractus brachypomus) under different feeding rates and frequencies [PDF]
Ciência Rural: This study evaluated the effects of feeding rates and frequencies on performance and physiological responses of pirapitinga (Piaractus brachypomus).
Camila Oliveira Paranhos +7 more
doaj +2 more sources